O208 エタノール製造原料としての食品ゴミの可能性(セッション2:技術〜生物化学〜,口頭発表)

概要

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Renewable energy from kitchen refuse with ethanol fermentation for biofuel application was established in this work. Ethanol fermentation from kitchen refuse by acid tolerant yeast as Saccharomyces cerevisiae ATCC 26602 was selected from four S. cerevisiae strains comparison. At the optimal kitchen refuse medium which consisted only 12%(w/v) glucose, maximal ethanol concentration of 59.38g/L with 98.23% the theoretical yield in shaking flask condition resulted in 0.50% ethanol yield(Y_<p/s>) without pH control was achieved. When non-sterilized conditions of ethanol fermentation from kitchen refuse in scaling up to 20-L bioreactor was applied. About 50.22g/L ethanol concentration was obtained, equivalent to 93.19% fermentation efficiency of theoretical and 0.42% ethanol yield (Y/_<p/s>) under agitation rate of 100rpm at 30℃ for 18h. Therefore, non-sterilized ethanol fermentation from kitchen refuse by S. cerevisiae ATCC 26602 could be suggested as an economical process.
一般社団法人日本エネルギー学会の論文
2007-01-16